Method For Adapting An Injection Quantity

摘要

A method for adapting an injection quantity in an injection system of an internal combustion engine of a mild-hybrid motor vehicle or motor vehicle having a starter-generator or integrated starter-generator is disclosed. In an operating phase in which the e-machine of the motor vehicle drives the internal combustion engine, at least one small-quantity test injection is performed into a cylinder of the internal combustion engine. The associated injection quantity is determined based on a resulting torque. Corresponding correction variables for the adaptation of the injection quantity are determined therefrom. The method may eliminate the need to perform test injections during overrun phases of the internal combustion engine.

主权项

1. A method for adapting an injection quantity in an injection system of an internal combustion engine of a motor vehicle having an electric motor, the method comprising:
during an operating phase in which the electric motor of the motor vehicle drives the internal combustion engine, performing at least one minimum-quantity test injection into a cylinder of the internal combustion engine, determining a torque of the internal combustion engine resulting from the test injection, determining as injection quantity based on the determined torque, determining corresponding correction variables for adapting an injection quantity based on the determined injection quantity, and applying the correction variables to adapt a subsequent injection quantity.